All Projects → imistyrain → Easypr4android

imistyrain / Easypr4android

Andorid端实时车牌识别Realtime chinese plate recoginition on android

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基于EasyPR的车牌识别android实现

EasyPR4Android,基于EasyPR1.6的android实现, 提供编译好的mrcar.apk安装运行demo.

效果图

特性:动态注册jni函数, 摄像头实时预览

编译和运行:

环境: android studio3.5开发实现,ndk版本为R16b,OpenCV版本为3.2,android SDK版本为28,最低要求21。

本项目定义了三个Activity, 其中

  • PhotoActivity是从图片和系统相机抓取图片进行识别

  • CVCameraActivity是用OpenCV的JavaCameraView实时识别,由于OpenCV实现的限制,其只能用于横屏,虽然也有trick能使其支持竖屏,但会有性能损失,为此产生了第三种

  • CameraActivity原始摄像头实时识别,抓取NV21数据送到jni中,并将其抓换成RGB数据进行处理,其支持竖屏识别。

参考:

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